Boiler Room Operating Condition; Clearance From Combustible Material - Camus Hydronics DynaFlame DFW501 Installation, Operation And Service Manual

Gas fired commercial copper tube boilers
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If provided, test for spillage at the barometric
damper relief opening after 5 minutes of main
burner operation. Use a cold mirror, the flame of a
match, or candle or smoke from a cigarette.
After it has been determined that each appliance
remaining connected to the common venting
system properly vents when tested as outlined
above, return doors, windows, exhaust fans,
fireplace dampers and any other gas-burning
appliance to their previous condition of use.
Any improper operation of the common venting
system should be corrected so that the installation
conforms to the National Fuel Gas Code, ANSI
Z223.1 and/or CAN/CGA B149, Installation Codes.
When resizing any portion of the common venting
system, the common venting system should be
resized to approach the minimum size as
determined using the appropriate tables in Part 11
of the National Fuel Gas Code, ANSI Z223.1 and
/or CAN/CGA B149, Installation Codes.
Heat exchanger surfaces and vent piping should be
checked every six months for deterioration and carbon
deposits. Remove all soot or other obstructions from the
chimney and flue, which might impede draft action. Replace
any damaged or deteriorated parts of the venting system.
A qualified service technician should follow this procedure
when inspecting and cleaning the heat exchanger and vent
pipe.
1.
Turn off electrical power and main manual gas shut-off
and allow appliance to cool down.
2.
Remove the vent pipe running to the chimney and
check heat exchanger, vent and chimney for
obstruction and clean as necessary.
3.
Remove burner from appliance and carefully clean as
required. Never brush or wipe the knitted metal fibber
surface, use a garden hose and wash instead.
Caution: Never use pressure washer to clean the
burner.
4.
Use pressure wash to clean heat exchanger if
necessary.
5.
Reinstall parts removed in steps 2 and 3. Be sure that
vent pipe has proper pitch and is properly sealed.
Replace any damaged gasket. Note that the burner is
supplied with two gaskets; a high temperature ceramic
paper gasket under the burner flange and a stamped
silicon gasket between the burner flange and fan
flange. Tighten fan flange mounting nuts to 20 ft-lb.
6.
Restore electrical power and gas supply to appliance.
7.
Place appliance in operation using lighting instructions
provided.
8.
Confirm proper operation of all safety devices
9.
Check for gas leaks and proper vent operation.
Experience has shown that improper installation or
system design, rather than faulty equipment, is the
cause of most operating problems
1.9

BOILER ROOM OPERATING CONDITION

Due to low jacket losses from the appliance,
temperatures in a typical boiler room may drop
significantly; supplemental heat is required to maintain
ambient temperature at acceptable levels.
5
NOTE:
Cold fresh air intakes must be located to minimize the
effects on venting and subsequent condensation in the
flue of Category I installations. When necessary,
consider the use of insulation or corrosion resistant
venting material.
Camus DynaFlame boilers and water heaters are
approved at 85% efficiency which allows the
equipment to be vented as a Category I appliance
using either single wall "C" vent or double wall "B" vent.
Certain conditions in the field however lead to
condensation in the vent and render these products
unsuitable.
These conditions include and are not necessarily limited to:
1.
Low boiler room temperature.
2.
Low return water temperature.
3.
Long periods of low fire operation.
4.
Oversized breeching in common venting
applications.
5.
Proximity to combustion air openings.
Given the frequency of these conditions occurring in the
field, we are recommending the use of corrosion resistant
stainless steel venting wherever possible.
1.10
CLEARANCE FROM COMBUSTIBLE
MATERIAL
This appliance is suitable for alcove (a closet without a
door) installation with minimum clearances to combustibles
as follows:
Table 2: Clearances from Combustibles
Clearances from Combustibles
TOP:
SIDES:
REAR:
VENT:
Figure 4: Clearance from Combustibles
When placing the appliance be aware that a minimum
clearance of 24" (60cm) must be provided at the front to
allow easy access to the primary heat exchanger.
12"
12"
12"
6"

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